Is there anything wrong with the inner shaft in your remote-controlled toy? This 9053B-9 Inner Shaft for Double Horse RC Helicopter is an ideal replacement for people who do not want to pay high maintenance fee or buy a new toy. As to the quality, it adopts durable and reliable material for your long-term use. In addition, it is easy to replace and use. Your RC helicopter will work as well as before after installation. This small part can save your device and your money.With reasonable price and superior quality, it is your wise choice!